Float-operated circuit-closer.



D. F. THOMSON. FLOAT OPERATED CIRCUIT CLOSER.

APPLICATION FILED OCT. 10.1914.

1 1 53. 142. Patented Sept. 7, 1915.

qw ///////7 ZZZ? flaw/W0 Application flied Def To all 411710922, it mayconcern:

Be it known that l, DATLIF F. Timers Iv, a citizen of the United States,residing at Bettsville, in the county of Seneca and State of Ohio, haveinvented new and useful linproveinents in Float Operated Circuit-Closers, of which the following is a specification.

This invention relates to float operated circuit closers end is designedwith special. reference to the gasolene tanks or" motor cars, the objectof the invention being to provide reliable means for automaticallysignaling the operator of a motor car when level of gasolene in the tankfalls to a low predetermined level, thereby advising the operator beforehe runs out of gasolene.

With the above and other objects in view, the invention consists in'thenovel construction, combination and arrangen'ient of parts, as hereindescribed, illustrated and cla'nied.

In the accom mnyingdrawings Figure 1 is a vertical section through tanktoken longitudinally of the fioat, illustrating the application of thepresent invention thereto. Fig. 2 is it vertical cross section taken atright angles to Fig. 1'. Fig. 3 is a front elevation of the tank showingthe switch, alarm, cut-out, and electrical connections.

In illustrating the present invention have shown the same as embodied ina mo tor car, 1 designating e portion of ti o front seat of a presentday automobile under which the gasolene tank 2 is placed.

The tank is shown as comprising th usual top wall 3, bottom Wall 4; andonend walls and 6, respectively.

Gonnecting the top and bottom Walls of: the tank are tvv sets ofparallel vertical guides 7 shown in the form of rods, the latter servingfor a vertically movable lioat 8 the width of which is somewhat lessthan the distance between the guides while the length of sa lioat ispreferably nearly as great the ta nee between the opposite Walls of theten the Walls thereby serving to hold the lioa' 1 proper relation to theremainder of the mechanism While allowing the same to i I! and fall withthe level of gcsolene in the tank.

9 designates a lioat operating lever which is fulcrumed at 10 on theinside of the tank, the free end of said lever working in an eye 11 onthe upper side of the float 8 so that the float rises and falls, itactuetes the lover correspondingly.

Specification of Letters Patent.

.nding uoward v from the lever 9 is a.

oniity or"; which. is pivto lever. The stem 12 Ti e in the top wall ofto v ugh the va pair oi hollow cones, desig'neti extending upwardly hetenl; am desi cm the to? wail. of ng an inverted con y from top wevaporating, '2 5 The upper extrem of tin stem has n ointed connection wi n. lever Ii-S snooo l l y a. fulcrum post the tsnlr. lever ill bein yz: slotted link with the le eiill of an electric switc nated Q enerall Aand con'iorisine' base 26 havia' pointi'l, sprine 161* contact point hlever is erlspted for it point referred or to u'iove away from the seineso as to in and break the electrical contra v", con ing made when thefir t i "hr trinl; reach a predc crmined poi ,t or, in other Woi justbefore the gas-alone supply is exhausteo; The switch m: v

be mounted on the fro! 1 of the so so as to l reaeiiy ac sible to theopcr; ;or. From t .1 siritoh .i wires 23 and 2t rxtrnll to n butts v :25shown in the iorm o'l a dry cell, saio circuit Wires also in-(illtllllgi an alarm 3 and a. cutout it will now be seen that when thelloat do srcnds to a certain point and before the gasolene entirelyconsumed, the switch i undies electrical contact and car a arm to heuuled, thereby notii'yln operator that the one supply is *ccom. in;exhausted. 1' he thus not" 1 means of the cutout 0, he may or electricalconnection 11ml sounding: of the alarm. [is soon as is relillrd, thecutout is elosrrl so tin nit-er the automatic signal will become emtivcin the same Way previously inniceted.

bination of a liquid tank embodying top, bottom and side Walls, the topwall having a hole therein, a hollow cone extending above said top wall,an inverted cone extending below said top all, both cones having holesin their vertices in line with each other and the hole in said top Wall,a float in said tank,

a stem actuated by said float and extending upwardly through both conesand said top Wall, a lever to which said stem is connect- 10 ed, anelectric sWitch,- a switch lever, and a link connecting said levers.

In testimony whereof I aflix my signature in presence of two "Witnesses.

DATLIF F. THOMSON. W'itnesses ML E. WILSON, M. R. MENCH.

